• All specifications are subject to change without notice. • Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications. EL/ELT/PQI/EIR/ER/EI series Ferrite for Switching Power Supplies Planar cores Issue date: April 2011
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Ferrite for Switching Power Supplies · (1/28) 001-01 / 20110420 / e142.fm • All specifications are subject to change without notice. Ferrite for Switching Power Supplies Planar
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• All specifications are subject to change without notice.• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
EL/ELT/PQI/EIR/ER/EI series
Ferrite for Switching Power Supplies
Planar cores
Issue date: April 2011
(1/28)
001-01 / 20110420 / e142.fm
• All specifications are subject to change without notice.
Ferrite for Switching Power SuppliesPlanar Cores
EL11X4 to EL25X8.6ELT11X3 to ELT25X8.6PQI16/7.8 to PQI26/12EIR14/4.5/9 to EIR22/5.5/15ER9.5/5 to ER25/5.5/18EI14/5/5 to EI22/8/16
Ordering Code SystemPC95 EL 11X4 – A125
MaterialSize of EL core
AL-value(Z: without air gap)
(2/28)
001-01 / 20110420 / e142.fm
• All specifications are subject to change without notice.
EL CORES
∗ AL-value: 1kHz, 0.5mA, 100Ts
Part No.(ELH+ELH)Dimensions in mmA B C D E F1 F2 R2
PARAMETERCore factor C1 mm–1 0.826Effective magnetic path length e mm 13.7Effective cross-sectional area Ae mm2 16.5Effective core volume Ve mm3 226Cross-sectional winding area of core Acw mm2 6.39Weight (approx.) g 1.3
Dimensions in mm
8.8±
0.2
2.01
±0.1
1.0±
0.1
6.4±
0.15
2.78±0.1
9.17±0.2
11.0±0.2
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=6550.4×AL–1.000
NI40%=7446.9×AL–1.009
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=38.79×lg –0.7342
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.667Effective magnetic path length e mm 15.4Effective cross-sectional area Ae mm2 23.1Effective core volume Ve mm3 357Cross-sectional winding area of core Acw mm2 7.54Weight (approx.) g 2.0
Dimensions in mm
10.4
±0.2
2.19
±0.1
1.0±
0.1
7.56
±0.1
5
3.29±0.1
10.83±0.2
13.0±0.25
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=10915.6×AL–1.031
NI40%=12455.2×AL–1.040
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=52.02×lg –0.758
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.597Effective magnetic path length e mm 19.6Effective cross-sectional area Ae mm2 32.9Effective core volume Ve mm3 646Cross-sectional winding area of core Acw mm2 13.5Weight (approx.) g 3.5
Dimensions in mm
12.4
±0.2
52.
92±0
.1
1.5±
0.1
9.01
±0.2
3.92±0.1
12.92±0.25
15.5±0.3
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=69.24×lg –0.774
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=12647.2×AL–0.989
NI40%=12041.0×AL–0.961
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.702Effective magnetic path length e mm 11.7Effective cross-sectional area Ae mm2 16.6Effective core volume Ve mm3 194Cross-sectional winding area of core Acw mm2 3.20Weight (approx.) g 1.1
8.8±0.22.01±0.1
1.0±0.1 6.4±0.152.
78±0
.1
9.17
±0.2
11.0
±0.2
8.8±0.21.01±0.05
11.0
±0.2
Dimensions in mm
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1
Center pole gap
Temperature: 25˚C
AL=12.081×lg –0.6732
102
NI l
imit(
AT
)
AL-value(nH/N2)102101101
Temperature: 100˚C40%
20%
NI20%=2106.0×AL–0.9047
NI40%=2352.6×AL–0.9193
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.826Effective magnetic path length e mm 13.7Effective cross-sectional area Ae mm2 16.5Effective core volume Ve mm3 226Cross-sectional winding area of core Acw mm2 6.39Weight (approx.) g 1.3
8.8±0.23.01±0.1
2.0±0.1 6.4±0.152.
78±0
.1
9.17
±0.2
11.0
±0.2
8.8±0.21.01±0.05
11.0
±0.2
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=45.451×lg –0.6664
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=79126×AL–1.0385
NI40%=8238.4×AL–1.0638
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.578Effective magnetic path length e mm 13.4Effective cross-sectional area Ae mm2 23.2Effective core volume Ve mm3 312Cross-sectional winding area of core Acw mm2 3.77Weight (approx.) g 1.8
10.4±0.22.19±0.1
1.0±0.1 7.56±0.153.
29±0
.1
10.8
3±0.
2
13.0
±0.2
510.4±0.21.19±0.05
13.0
±0.2
5
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=77.30×lg –0.602
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=12501.9×AL–1.053
NI40%=11455.4×AL–1.015
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.667Effective magnetic path length e mm 15.4Effective cross-sectional area Ae mm2 23.1Effective core volume Ve mm3 357Cross-sectional winding area of core Acw mm2 7.54Weight (approx.) g 2.0
10.4±0.23.19±0.1
2.0±0.1 7.56±0.153.
29±0
.1
10.8
3±0.
2
13.0
±0.2
510.4±0.21.19±0.05
13.0
±0.2
5
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=61.57×lg –0.687
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=14878.1×AL–1.080
NI40%=16164.5×AL–1.085
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.503Effective magnetic path length e mm 16.6Effective cross-sectional area Ae mm2 33.1Effective core volume Ve mm3 550Cross-sectional winding area of core Acw mm2 6.75Weight (approx.) g 3.0
12.4±0.252.92±0.1
1.5±0.1 9.01±0.23.
29±0
.1
12.9
2±0.
25
15.5
±0.3
12.4±0.251.42±0.1
15.5
±0.3
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=91.84×lg –0.683
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=13312.0×AL–1.008
NI40%=14620.9×AL–1.011
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.538Effective magnetic path length e mm 23.8Effective cross-sectional area Ae mm2 44.3Effective core volume Ve mm3 1050Cross-sectional winding area of core Acw mm2 20.9Weight (approx.) g 6.0
14.4±0.255.65±0.1
4.0±0.15 10.47±0.24.
55±0
.1
15.0
±0.3
18.0
±0.3
14.4±0.251.65±0.1
18.0
±0.3
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=101.52×lg –0.7339
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=21202×AL–1.0393
NI40%=22470×AL–1.0421
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.350Effective magnetic path length e mm 30.0Effective cross-sectional area Ae mm2 85.6Effective core volume Ve mm3 2570Cross-sectional winding area of core Acw mm2 29.0Weight (approx.) g 15
20.0±0.356.29±0.15
4.0±0.15 14.54±0.256.
32±0
.15
20.8
3±0.
35
25.0
±0.4
520.0±0.352.29±0.1
25.0
±0.4
5
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=166.92×lg –0.7706
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=45556×AL–1.0498
NI40%=46960×AL–1.0467
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.467Effective magnetic path length e mm 19.5Effective cross-sectional area Ae mm2 41.8Effective core volume Ve mm3 815Cross-sectional center pole area Acp mm2 11.3Weight (approx.) g 5.0
14.4
±0.3
16.4
±0.3
ø7.
0±0.
2
9.6m
in.
11.2±0.15 5.4±0.1
3.05±0.15
16.4
±0.3
9.6m
in.
11.2±0.3 2.35±0.1
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=79.28×lg –0.7555
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=15271×AL–0.9935
NI40%=19105×AL–1.0297
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.346Effective magnetic path length e mm 22.9Effective cross-sectional area Ae mm2 66.0Effective core volume Ve mm3 1510Cross-sectional winding area of core Acw mm2 14.0Weight (approx.) g 9.018
.0±0
.4
20.5
±0.4
ø8.
8±0.
2
12.0
min
.
14.0±0.4 6.0±0.1
3.05±0.15
20.5
±0.4
12.0
min
.14.0±0.4 2.95±0.1
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=108.98×lg –0.8221
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=31243×AL–1.0397
NI40%=31082×AL–1.0308
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.224Effective magnetic path length e mm 27.7Effective cross-sectional area Ae mm2 123Effective core volume Ve mm3 3410Cross-sectional winding area of core Acw mm2 16.3Weight (approx.) g 2122
.5±0
.45
26.5
±0.4
5
ø12
.0±0
.2
15.5
min
.
19.0±0.45 7.3±0.1
3.1±0.15
26.5
±0.4
5
15.5
min
.19.0±0.45 4.2±0.1
Dimensions in mm
104
103
102
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=284.51×lg –0.831
102
103
NI l
imit(
AT
)
AL-value(nH/N2)104103102101
Temperature: 100˚C
40%
20%
NI20%=74915.0×AL–1.0468
NI40%=8564.0×AL–1.0607
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.679Effective magnetic path length e mm 15.4Effective cross-sectional area Ae mm2 22.7Effective core volume Ve mm3 349Cross-sectional winding area of core Acw mm2 5.84Weight (approx.) g 2.0
9.0±0.23.2±0.1
1.9±0.1
ø5.
2±0.
1
11.3
5±0
.15
1.25
1.25
13.8
5±0
.25
9.2±0.2 1.3±0.1
14.0
±0.2
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=44.153×lg –0.7138
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=9794.7×AL–1.0231
NI40%=11668×AL–1.0519
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.601Effective magnetic path length e mm 19.7Effective cross-sectional area Ae mm2 32.8Effective core volume Ve mm3 645Cross-sectional winding area of core Acw mm2 9.75Weight (approx.) g 3.8
12.0±0.23.5±0.1
2.0±0.1
ø6.
0±0.
1
15.7
5±0
.25
1.2
1.2
18.1
5±0
.3
12.2±0.2 1.5±0.1
18.2
±0.2
5
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=62.293×lg –0.6882
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%20%
NI20%=10781×AL–0.9789
NI40%=17608×AL–1.0637
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 1.67Effective magnetic path length e mm 14.2Effective cross-sectional area Ae mm2 8.47Effective core volume Ve mm3 120Cross-sectional winding area of core Acw mm2 7.07Weight (approx.) g 0.7
Dimensions in mm
7.0m
in.
9.5
+0
–0.3
ø3.
5+
0–0
.2
2.5+0–0.1
1.6+0.15–0
5.0+0–0.2
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=18.26×lg –0.7831
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=3109.2×AL–1.0106
NI40%=3298.3×AL–1.0159
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.679Effective magnetic path length e mm 15.4Effective cross-sectional area Ae mm2 22.7Effective core volume Ve mm3 349Cross-sectional winding area of core Acw mm2 5.84Weight (approx.) g 2.0
Dimensions in mm
9.0±0.22.25±0.1
0.95±0.1
ø5.
2±0.
1
11.3
5±0.
151.
251.
25
13.8
5±0
.25
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=41.575×lg –0.7757
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=9022.4×AL–1.0034
NI40%=9982×AL–1.0153
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
• All specifications are subject to change without notice.
ER Series ER14.5/6 Cores
∗ 1kHz, 0.5mA, 100Ts
NI limit vs. AL-value for AL-value vs. Air gap length forPC95ER14.5/6 gapped core (Typical) PC95ER14.5/6 core (Typical)
Part No. AL-value (nH/N2)∗ Core loss (W) at 25/80/120°C100kHz, 200mT
PC95ER14.5/6-Z 3500±25% 0.3/0.28/0.3
PARAMETERCore factor C1 mm–1 1.08Effective magnetic path length e mm 19.0Effective cross-sectional area Ae mm2 17.6Effective core volume Ve mm3 333Cross-sectional winding area of core Acw mm2 8.42Weight (approx.) g 2.0
3.0+0–0.1
Dimensions in mm
6.7±0.1
1.65±0.1
ø4.
7±0.
2
11.8
±0.2
1.35
1.35
14.5
±0.2
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 0.601Effective magnetic path length e mm 19.7Effective cross-sectional area Ae mm2 32.8Effective core volume Ve mm3 645Cross-sectional winding area of core Acw mm2 9.75Weight (approx.) g 3.8
Dimensions in mm
12.0±0.12.5±0.1
1.0±0.1
ø6.
0±0.
1
15.7
5±0.
251.
21.
2
18.1
5±0
.3
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=61.29×lg –0.7237
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%20%
NI20%=8664.9×AL–0.9482
NI40%=8641.1×AL–0.9377
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.
PARAMETERCore factor C1 mm–1 1.11Effective magnetic path length e mm 16.7Effective cross-sectional area Ae mm2 15.0Effective core volume Ve mm3 251Cross-sectional winding area of core Acw mm2 8.0Weight (approx.) g 1.3
5.0±0.111
.0±0
.25
1.5
1.5
14.0
±0.3
3.0±
0.1
3.5±0.1
2.0±0.11.5
5.0±0.11.5±0.05
14.0
±0.3
Dimensions in mm
103
102
101
AL-
valu
e(nH
/N2 )
Air gap length(mm)0.01 0.10 1 10
Center pole gap
Temperature: 25˚C
AL=37.239×lg –0.6627
102
103
NI l
imit(
AT
)
AL-value(nH/N2)103102101101
Temperature: 100˚C
40%
20%
NI20%=5602.2×AL–0.9893
NI40%=5612.1×AL–0.9697
Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.